Land Administration - Cadastral Case Study

Creation of vector database of cadastral maps

Data conversion and integration services

Background and Objectives

The client is a leading French consultancy providing specialized services in Geomatics and land rights. They specialize in integrating land data for use in land development and infrastructure related projects. Magnasoft has a strategic partnership with the client and provides data conversion and integration services for land cadastre, utilities and Photogrammetry.

Cadastral mapping screenshot for French consultancy

Key Aspects of the project

  • The project involves Vectorization, Georeferencing & Edgematching of cadastral maps.

Services Rendered and Methodology
The scope of work involved the following activities:

  • Plotting and Pre-processing
    • Scans of section maps provided by client are plotted and checked for clarity
  • Digitization
    • Digitization using AutoCAD 2000 based on digitization standards
    • Involves line work digitization with proper layerization
    • Quality Check for digitization & textual accuracy
  • Georeferencing

    Magnasoft's Georeferencing screenshot
    • The maps are georeferenced using Helmert transformation routine developed by Magnasoft in AutoCAD
    • Georeferencing carried out on grid (regular) and non- grid(non regular)
  • Quality Control
    • Tools used for checking errors in digitized drawings with regard to network, node placement and text attribution
  • Creation of plot and coordinate files
  • Edgematching of regular and non-regular maps

Tools Used:

  • MicroStation J
  • AutoCAD Map

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